The splash screen only appears when the plug-in is not registered or registered in DEMO mode. Once you purchase and register the plug-in in LIVE mode, then the splash screen disappears.
If you encounter the splash screen even after purchasing and registering the plug-in, please check the Operating Mode in the demo file and verify that it is running in "LIVE" mode. If it's anything but LIVE, please re-register, close FileMaker, and reopen it to see if the splash screen shows up again.
If you still have any issues, please contact firstname.lastname@example.org